FIELD: mechanics.
SUBSTANCE: invention refers to metal deformation process, namely to manufacturing procedure of cold-formed rolled profiles. Edge sections are bent one by one as to width of flat workpiece so that inclined side elements are formed. At that, in the above sections there formed are triangular corrugations. In the first three forming passages there formed is channel with horizontal flanges and its side flanges are inclined at an appropriate angle to horizontal. And starting with the fourth passage, these horizontal flanges are bent downwards till finite angle in the seventh passage is reached and also, side flanges formed before are bent to a certain angle so that horizontal flanges are formed in the sections bent downwards.
EFFECT: profile of the required geometry in a minimum number of forming passages.
1 dwg, 1 ex
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